Lake Pressegg

Lake Pressegg is a lake in Carinthia, Austria. It is located in a glacial valley within the Gailtal Alps, a mountain range of the Southern Limestone Alps, east of Hermagor. With an average depth of 3.4 m, the water body of the semi-circular lake is relatively flat. It is characterized by extended reed beds, while there are also bathing beaches on the northern and southern shore busy in summer.

Source: Wikipedia